RESEARCH ARTICLE Nuclear Species-Diagnostic SNP Markers Mined from 454 Amplicon Sequencing Reveal Admixture Genomic Structure of Modern Citrus Varieties Franck Curk1,2, Gema Ancillo2, Frédérique Ollitrault2, Xavier Perrier3, Jean- Pierre Jacquemoud-Collet3, Andres Garcia-Lor2, Luis Navarro2*, Patrick Ollitrault2,4* 1 Unité Mixte de Recherche Amélioration Génétique et Adaptation des Plantes (UMR Agap), Institut National de la Recherche Agronomique (Inra), Centre Inra de Corse, F-20230, San Giuliano, Corsica, France, 2 Centro de Protección Vegetal y Biotecnología, Instituto Valenciano de Investigaciones Agrarias (Ivia), 46113, Moncada, Valencia, Spain, 3 Unité Mixte de Recherche Amélioration Génétique et Adaptation des Plantes (UMR Agap), Centre de coopération Internationale en Recherche Agronomique pour le Développement (Cirad), TA A-108/02, 34398, Montpellier, Cedex 5, France, 4 Unité Mixte de Recherche Amélioration Génétique et Adaptation des Plantes (UMR Agap), Centre de coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Station de Roujol, 97170, Petit-Bourg, Guadeloupe, France OPEN ACCESS *
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[email protected] (PO) Citation: Curk F, Ancillo G, Ollitrault F, Perrier X, Jacquemoud-Collet J-P, Garcia-Lor A, et al. (2015) Nuclear Species-Diagnostic SNP Markers Mined from 454 Amplicon Sequencing Reveal Admixture Abstract Genomic Structure of Modern Citrus Varieties. PLoS Most cultivated Citrus species originated from interspecific hybridisation between four an- ONE 10(5): e0125628. doi:10.1371/journal. pone.0125628 cestral taxa (C. reticulata, C. maxima, C. medica, and C. micrantha) with limited further inter- specific recombination due to vegetative propagation. This evolution resulted in admixture Academic Editor: David D Fang, USDA-ARS- SRRC, UNITED STATES genomes with frequent interspecific heterozygosity.